<template>
  <!--<el-table :data="formatData" :row-style="showRow" v-bind="$attrs">-->
    <!--<el-table-column v-if="columns.length===0" width="150">-->
      <!--<template slot-scope="scope">-->
        <!--<span v-for="space in scope.row._level" :key="space" class="ms-tree-space"/>-->
        <!--<span v-if="iconShow(0,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">-->
          <!--<i v-if="!scope.row._expanded" class="el-icon-plus"/>-->
          <!--<i v-else class="el-icon-minus"/>-->
        <!--</span>-->
        <!--{{ scope.$index }}-->
      <!--</template>-->
    <!--</el-table-column>-->
    <!--<el-table-column v-for="(column, index) in columns" v-else :key="column.value" :label="column.text" :width="column.width">-->
      <!--<template slot-scope="scope">-->
        <!--&lt;!&ndash; Todo &ndash;&gt;-->
        <!--&lt;!&ndash; eslint-disable-next-line vue/no-confusing-v-for-v-if &ndash;&gt;-->
        <!--<span v-for="space in scope.row._level" v-if="index === 0" :key="space" class="ms-tree-space"/>-->
        <!--<span v-if="iconShow(index,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">-->
          <!--<i v-if="!scope.row._expanded" class="el-icon-plus"/>-->
          <!--<i v-else class="el-icon-minus"/>-->
        <!--</span>-->
        <!--{{ scope.row[column.value] }}-->
      <!--</template>-->
    <!--</el-table-column>-->
    <!--<slot/>-->
  <!--</el-table>-->
<div>
  <el-table :data="tableData" style="width: 100%">
    <el-table-column
      v-for="col in cols"
      :prop="col.prop" :label="col.label" >
    </el-table-column>
  </el-table>

  <el-button raw-type="button" @click="addCol">
    添加一列
  </el-button>

</div>

</template>

<script>
  /**
   Auth: Lei.j1ang
   Created: 2018/1/19-13:59
   */
  import treeToArray from './index'
  export default {
    data() {
      return {
        tableData: [{
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1517 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1519 弄'
        }, {
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1516 弄'
        }],
        cols: [
          {prop: 'date', label: '日期'},
          {prop: 'name', label: '姓名'},
        ]
      }
    },

    computed: {
      // 格式化数据源
      formatData: function() {
        let tmp
        if (!Array.isArray(this.data)) {
          tmp = [this.data]
        } else {
          tmp = this.data
        }
        const func = this.evalFunc || treeToArray
        const args = this.evalArgs ? Array.concat([tmp, this.expandAll], this.evalArgs) : [tmp, this.expandAll]
        return func.apply(null, args)
      }
    },
    methods: {
      showRow: function(row) {
        const show = (row.row.parent ? (row.row.parent._expanded && row.row.parent._show) : true)
        row.row._show = show
        return show ? 'animation:treeTableShow 1s;-webkit-animation:treeTableShow 1s;' : 'display:none;'
      },
      // 切换下级是否展开
      toggleExpanded: function(trIndex) {
        const record = this.formatData[trIndex]
        record._expanded = !record._expanded
      },
      // 图标显示
      iconShow(index, record) {
        return (index === 0 && record.children && record.children.length > 0)
      },
      addCol(){
        this.cols.push({prop: 'address', label: '地址'})
      }
    }
  }
</script>
<style rel="stylesheet/css">
  @keyframes treeTableShow {
    from {opacity: 0;}
    to {opacity: 1;}
  }
  @-webkit-keyframes treeTableShow {
    from {opacity: 0;}
    to {opacity: 1;}
  }
</style>

<style  scoped>
  .ms-tree-space {
    position: relative;
    top: 1px;
    display: inline-block;
    font-style: normal;
    font-weight: 400;
    line-height: 1;
    width: 18px;
    height: 14px;

  }
  .ms-tree-space:before {
    content: ""
  }
  .processContainer{
    width: 100%;
    height: 100%;
  }
  table td {
    line-height: 26px;
  }

  .tree-ctrl{
    position: relative;
    cursor: pointer;
    color: red;
    margin-left: -18px;
  }
</style>
